[(2S)-1-[[(1R,2S,3R,4R,5S)-4-[(2S,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-(phenylmethoxycarbonylamino)oxan-2-yl]oxy-3-[(2S,3R,4S,5R)-4-[(2R,3R,4R,5S,6S)-4,5-dihydroxy-3-(phenylmethoxycarbonylamino)-6-(phenylmethoxycarbonylaminomethyl)oxan-2-yl]oxy-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-2-hydroxy-5-(phenylmethoxycarbonylamino)cyclohexyl]amino]-1-oxo-4-(phenylmethoxycarbonylamino)butan-2-yl] benzoate 、
苯甲醛 在
三氟乙酸 作用下,
反应 14.0h,
以61%的产率得到[(2S)-1-[[(1R,2S,3R,4R,5S)-4-[[(4aR,6S,7R,8R,8aS)-8-hydroxy-2-phenyl-7-(phenylmethoxycarbonylamino)-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-3-[(2S,3R,4S,5R)-4-[(2R,3R,4R,5S,6S)-4,5-dihydroxy-3-(phenylmethoxycarbonylamino)-6-(phenylmethoxycarbonylaminomethyl)oxan-2-yl]oxy-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-2-hydroxy-5-(phenylmethoxycarbonylamino)cyclohexyl]amino]-1-oxo-4-(phenylmethoxycarbonylamino)butan-2-yl] benzoate